libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/ctor.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 // UNSUPPORTED: c++03, c++11, c++14, c++17
   9
  10 // <chrono>
  11 // class year_month;
  12
  13 //            year_month() = default;
  14 //  constexpr year_month(const chrono::year& y, const chrono::month& m) noexcept;
  15 //
  16 //  Effects:  Constructs an object of type year_month by initializing y_ with y, and m_ with m.
  17 //
  18 //  constexpr chrono::year   year() const noexcept;
  19 //  constexpr chrono::month month() const noexcept;
  20 //  constexpr bool             ok() const noexcept;
  21
  22 #include <chrono>
  23 #include <type_traits>
  24 #include <cassert>
  25
  26 #include "test_macros.h"
  27
  28 int main(int, char**)
  29 {
  30     using year       = std::chrono::year;
  31     using month      = std::chrono::month;
  32     using year_month = std::chrono::year_month;
  33
  34     ASSERT_NOEXCEPT(year_month{});
  35     ASSERT_NOEXCEPT(year_month{year{1}, month{1}});
  36
  37     constexpr year_month ym0{};
  38     static_assert( ym0.year()  == year{},  "");
  39     static_assert( ym0.month() == month{}, "");
  40     static_assert(!ym0.ok(),               "");
  41
  42     constexpr year_month ym1{year{2018}, std::chrono::January};
  43     static_assert( ym1.year()  == year{2018},           "");
  44     static_assert( ym1.month() == std::chrono::January, "");
  45     static_assert( ym1.ok(),                            "");
  46
  47     constexpr year_month ym2{year{2018}, month{}};
  48     static_assert( ym2.year()  == year{2018}, "");
  49     static_assert( ym2.month() == month{},    "");
  50     static_assert(!ym2.ok(),                  "");
  51
  52   return 0;
  53 }